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13,164
RESULTS

Media Type
7
collections
11,036
texts
845
images
843
movies
309
audio
97
data
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Topics & Subjects
5,565
ERIC Archive
3,830
Test Construction
1,799
NASA Technical Reports Server (NTRS)
987
Elementary Secondary Education
914
Test Validity
744
CONSTRUCTION
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Collection
5,565
Education Resources Information Center (ERIC) Archive
1,799
NASA Network Resource and Training Site
1,422
American Libraries
558
NASA Images
539
Langley Research Center Media Archive
420
Canadian Libraries
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Creator
5,565
eric
1,799
nasa technical reports server (ntrs)
539
nasa/langley research center
428
defense technical information center
50
mymcm
44
united states. navy
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Language
11,262
English
127
French
46
German
46
Urdu
8
Arabic
8
Spanish
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